*SUPPORT*
IN: zup fep OUT: RED RED
IN: gazzer wif fep OUT: BLUE PURPLE PURPLE
IN: wif tufa lug dax OUT: YELLOW YELLOW PURPLE YELLOW YELLOW PURPLE
IN: gazzer fep OUT: BLUE BLUE
IN: lug tufa zup OUT: RED RED YELLOW
IN: lug OUT: YELLOW
IN: gazzer zup tufa wif OUT: BLUE PURPLE PURPLE RED
IN: wif OUT: PURPLE
IN: gazzer wif wif wif wif tufa gazzer OUT: BLUE PURPLE PURPLE PURPLE BLUE BLUE PURPLE
IN: gazzer OUT: BLUE
IN: zup tufa wif OUT: PURPLE PURPLE RED
IN: gazzer tufa gazzer OUT: BLUE BLUE BLUE
IN: lug tufa gazzer dax OUT: BLUE BLUE YELLOW BLUE BLUE YELLOW
IN: wif tufa wif dax OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE

*QUERY*
IN: lug fep OUT: YELLOW YELLOW
IN: zup zup zup tufa lug OUT: RED RED YELLOW YELLOW RED
IN: gazzer fep dax OUT: BLUE BLUE BLUE BLUE
IN: gazzer wif zup tufa wif OUT: BLUE PURPLE PURPLE PURPLE RED
IN: wif tufa wif OUT: PURPLE PURPLE PURPLE
IN: wif tufa lug OUT: YELLOW YELLOW PURPLE
IN: lug wif OUT: YELLOW PURPLE
IN: wif wif OUT: PURPLE PURPLE
IN: wif lug fep dax OUT: PURPLE YELLOW YELLOW PURPLE YELLOW YELLOW
IN: wif fep dax OUT: PURPLE PURPLE PURPLE PURPLE

*GRAMMAR*
zup -> RED 
 wif -> PURPLE 
 gazzer -> BLUE 
 lug -> YELLOW 
 u1 tufa u2 -> [u2] [u2] [u1] 
 x1 dax -> [x1] [x1] 
 u1 fep -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 